View source for BVY-95-106, Monthly Operating Rept for Sept 1995 for Vynp

{{Adams
| number = ML20093F510
| issue date = 09/30/1995
| title = Monthly Operating Rept for Sept 1995 for Vynp
| author name = Wallin G, Wanczyk R
| author affiliation = VERMONT YANKEE NUCLEAR POWER CORP.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000271
| license number = 
| contact person = 
| document report number = BVY-95-106, VY-RCE-95-024, VY-RCE-95-24, NUDOCS 9510180007
| document type = MONTHLY OPERATING ANALYSIS REPORT, TEXT-SAFETY REPORT
| page count = 7
}}

=Text=
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9 VERMONTLYANKE'E1
          ' NUCLEAR POWERiCORPORATION
                        ~.         -
P.O. Box 157, Governor Hunt Road
               /          '
Vernon, Vermont 05354-0157
__ ;,               (802) 257-7711 October 10, 1995 VY-RCE-95-024 BVY-95-106
                 .U.S. Nuclear Regulatory Commission
                 .' Attn:-                      Document Control Desk
                 -Washington, D.C. 20555

==Reference:==
a)       License No. DPR-28 (Docket No. 50-271)
In accordance with section 6.7.A.3 of the Vermont Yankee Technical              Specifications,           submitted  herewith  is   the Monthly Statistical' Report for the Vermont Yankee Nuclear Power Station for the month of Sectember, 1995.                                                            ,
Also, ' included with this report is a revised supplemental                  .
l
                   " Unit ' Shutdowns hnd Power Reductions" sheet for the June. 1995
-                 report.             This    sheet has been revised after further review of the           1 dated entry.
Sincerely, Vermont Yankee Nuclear Power Corp.
l
;                                                              Robert   . Wanczy Plant Manager
                 .cc:         USNRC' Region _I Administrator
                            -USNRC' Resident Inspector.- VYNPS USNRC' Project Mananger - VYNPS L'?Old3          '
            -9510190007 950930                                                                           [
PDR..ADOCK 05000271                                                                 /'
R . _ ,_            .
_,PDR _ _               ,                                    -l l

U-l
                                                         -i VERMONT YANKEE NUCLEAR POWER STATION-MONTHLY STATISTICAL REPORT 95-09 FOR THE MONTH OF SEPTEMBER 1995 a
i a
l l       DP 0411 Rev. 6 Page 1 of 1 l

OPERATING DATA REPORT DOCKET   NO.50-271
                *.                                                     DATE 951010 COMPLETED BY G A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS
: 1. Unit Name:         Vermont Yankee
: 2. Reporting Period:     Seotember
: 3. Licensed Thermal Power (MWt):1593
: 4. Nameplate Rating (Gross MWe): EAR
: 5. Design Electrical Rating (Net MWe):     122
: 6. Maximum Dependable Capacity (Gross MWe):      SlE
: 7. Maximum Dependable Capacity (Net MWe):        51H
: 8. If changes, occur in capacity ratings (Items Number 3 through 7) since last report, give reasons:
: 9. Power level to which restricted, if any(Net MWe):        N/A
: 10. Reasons for restrictions, if any:                  N/A This Month     Yr-to-Date    Cumulative
: 11. Hours in Reporting Period                     720.00        6551.00     200135.00
: 12. Number Of Hours Reactor was Critical          720.0Q_       5464.96     165327.63
: 13. Reactor Reserve Shutdown Hours                  0.00           0.00          0.00
: 14. Hours Generator On-Line                       720.00        5415.45     162111.56
: 15. Unit Reserve Shutdown Hours                     0.00           0.00          0.00
: 16. Gross Thermal Energy Generated (MWH)     1143418.40      8519387.70  242688260.90
: 17. Gross Electrical Energy Generated          385287.00     2876936.00 80914288.00
: 18. Net Electrical Energy Generated (MWH)      363210.00     2735099.00   76893694.00
: 19. Unit Service Factor                           100.00          82.67         81.00
: 20. Unit Availability Factor                      100.00          82.67         81.00
: 21. Unit Capacity Factor (Using MDC Net)           98.91          82.29         75.57
: 22. Unit Capacity Factor (Using DER Net)           96.64          80.52         74.10
: 23. Unit Forced Outage Rate                         0.00           0.00          4.81
: 24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each:    N/A
: 25. If shut down at end of report period, estimated date of startup:N/A
: 26. Units In Test Status (prior to commercial operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.19F

i' AVERAGE DAILY UNIT POWER LEVEL
,-                                                                       DOCKET NO. 50-271
                   '-                                                           UNIT Vermont Yankee DATE 951010 i                                                                     COMPLETED BY   G.A. WALLIN TELEPHONE     (802)258-5414
.         MONTH   September
;         DAY    AVERAGE-DAILY POWER LEVEL-             DAY      AVERAGE DAILY POWER LEVEL (MWe-Net)                                      (MWe-Net)
: 1.             498                               17.            507
: 2.             504                               18.            507
]-
: 3.             505                               19.            508
: 4.             503                               20,            508 3
: 5.             500                               21.            505
: 6.             502                               22.            501
:           7.             497                               23.            510 i
: 8.             506                               24.            510
: 9.             506                               25.            505 10,             507                               26.            506 11,             478                               27.            505
: 12.             506                               28.            509 13,             501                               29.            512
: 14.             500                               30.            512 15,             508                               31.            ---
: 16.             509 INSTRUCTIONS:
On this format, list the average daily unit power level in MWE-Net for each day in the reporting month. Compute to the nearest whole nu:3awatt .
VYDPF 0411.02 DP 0411 Rev. 6 Page 1 of 1
          'RT No. 13.F01.18V

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH SEPTEMBER                                     DOCKET NO 50-271                                 '
UNIT NAME Vermont Yankee DATE 951010 COMPLETED BY G.A. Wallin TELEPHONE f802)258-5414 1                                            2      3                           4         5 No.                                                                   Date                                                                                 Type                                                 Duration   Reason     Method of     License System        Component        Cause and Corrective                               *
(hours)              Shutting      Event       Code      Code             Action to Prevent Down         Report #                                Recurrence Reactor 95-06                                                                   950911                                                                                                        S                              0.00          B,H*      4          N/A         RB       CONROD     Bypass valve tests; Power                                         MSIV full closure test Reduction                                       and a rod pattern exchange 1                     F: Forced                                                                                                                                                                                2 Reason:                                 3 Method:                   4 Exhibit G- Instructions S: Scheduled                                                                                                                                                                                A-Equipment Failure (Explain)             1 - Manual                 for Preparation of Data B-Maintenance or Test                     2 - Manual Scram           Entry Sheets for License C-Refueling                               3 - Automatic Scram        Event Report (LER) File D-Regulatory Restriction                  4 - Other (Explain)        (NUREG 0161)
E-Operator Training and License Examination                                              5 Exhibit I - Same Source VYDPF 0-411.03                                                                                                                                                                                                    F-Administrative DP 0411 Rev. 6                                                                                                                                                                                                    G-Operational Error (Explain)
Page 1 of 1                                                                                                                                                                                                      *H-(Explain) - Rod Pattern Exchange

             .             ~
DOCKET NO. 50-271 DATE 951010 COMPLETED BY   G.A. WALLIN
              **                                              TELEPHONE    (802)258-5414
;                            REPORT MONTH   September                                    i 4    

==SUMMARY==
OF OPERATING EXPERIENCES Hichlights
'    Vermont Yankee operated at 99.7% of rated thermal power for the month.
Gross electrical generation was 385.287 MWHe or 98.0% design electrical capacity.
J    Ooeratina Summary j    The following is a chronological description of plant operations including i    other pertinent items of interest for the month:                                     l
!    At the beginning of the reporting period the plant was operating at 99.9%
of rated thermal power.
950911     At 0420 hours, initiated a power reduction to less than 80%, to          ,
perform turbine bypass valve tests, MSIV full closure tests, and         j a rod pattern exchange.    (See Unit Shutdowns and Power Reductions)
    -950911     At 0450 hours, initiated turbine bypass valve testing.
950911     At 0510 hours, completed curbine bypass valve testing.      Reducing     i power to less than 70%, to perform MSIV full closure tests, and          )
l the rod pattern exchange.
l 950911     At 0525 hours, initiated MSIV full closure testing.                        !
l 950911     At 0540 hours, completed MSIV full closure testing. Initiated the rod pattern exchange.
I 950911     At 0625 hours, completed the rod pattern exchange.
950911     At 0655 hours, initiated a return to full power.                          1 At the end of the reporting period the plant was operating at 99.9% of rated thermal power.
VYDPF 0411.04 DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.18X

         . __.       _. _.    .        . _. _.._..      ___     .-     _ ~ . - . . _             _ - . _ _ < .          _ ..m.            .      . _ . -                                                                       . . .   ,_ . ..      .
                                                                                                                                                                                                                                                          . .t 1.--
o UNIT SHUTDOWNS AND POWER REDUCTIONS-REPORT MONTH JUNE ;Rev.1                                                                    DOCKET NO 50-271 #'                                                                                         f UNIT NAME Vermont Yankee
                                                                                                                                                       -DATE 950710                                                                      -
COMPLETED BY-G.A. Wallin
* TELEPHONE (802)258-5414 1                     2          3                                                    4             5 No.. Date   Type    Duration       Reason  Method of               License                      System        Component           Cause and Corrective                                                                                    ,
(hours)                Shutting               Event-                       Code          Code                Action to Prevent                                                                                       ;
Down                   Report #                                                       Recurrence                                                                                              .
Reactor                                                                                                                                                                                       t 95   950619    F         0.00          A            4                N/A                            RB        'CONROD           Power reduction'due'to Power                                                                             crid stability with Reduction                                                                           loss of the 379 KV.                                                                                       .
line                                                                                                      :
t I
1   F: Forced        2 Reason:                                               3-Method:                                          4 Exhibit G- Instructions S: Scheduled        A-Equipment Failure (Explain)                                 1 - Manual                                  for Preparation'of Data B-Maintenance or Test                                         2 - Manual Scram                            Entry Sheets for License C-Refueling                                                   3 - Automatic Scram                         Event Report (LER) File D-Regulatory Restriction                                      4 - Other.(Explain)                          (NUREG 0161)                                                                                               ;
E-Operator Training and License Examination                                                                                   5 Exhibit-I - Same Source                                                                                     ,
VYDPF 0411.03           F-Administrative DP 0411.Rev. 6          G-Operational Error (Explain)                                                                                                                                                                                         t Page 1 of 1             H-(Explain) -
4
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